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Last updated: 26 January 2020
Statuts:Enquête Officielle
Date:samedi 17 février 1979
Heure:14:35
Type/Sous-type:Silhouette image of generic F27 model; specific model in this crash may look slightly different
Fokker F-27 Friendship 500
Compagnie:Air New Zealand
Immatriculation: ZK-NFC
Numéro de série: 10456
Année de Fabrication: 1971
Heures de vol:18718
Cycles:25704
Moteurs: 2 Rolls-Royce Dart 532-7R
Equipage:victimes: 1 / à bord: 2
Passagers:victimes: 1 / à bord: 2
Total:victimes: 2 / à bord: 4
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:1 km (0.6 milles) W de Auckland International Airport (AKL) (   Nouvelle-Zélande)
Phase de vol: En approche (APR)
Nature:Charter National
Aéroport de départ:Gisborne Airport (GIS/NZGS), Nouvelle-Zélande
Aéroport de destination:Auckland International Airport (AKL/NZAA), Nouvelle-Zélande
Numéro de vol:4374
Détails:
At 14:28 hours Flight 4374 had levelled out at 3000 feet with the undercarriage and flaps up and was being radar vectored for an ILS approach to Auckland Airport. When visual flight conditions were encountered and the captain commenced the descent the aircraft was 9 miles from the runway threshold at an airspeed of approximately 165 knots and in a good position to carry out a normal descent and approach for a landing on runway 05. About one minute later, at 2 minutes 14 seconds prior to colliding with the sea, the aircraft's IAS had increased to 211 knots (11 knots in excess of the company's stipulated
Vno) and the aircraft was passing through 1436 feet. Some 1 minute 20 seconds prior to the accident the aircraft's engine power was probably reduced to the minimum recommended setting for a descent. During the base turn the engine power was probably increased as the aircraft maintained an essentially constant altitude and airspeed during this turn. At this point the flaps were still retracted and the aircraft was not aligned with the runway. At that moment a heavy shower was obscuring the runway threshold. The first officer was not able to see any approach or runway lights. The aircraft descended until it collided with the water of Manukau Harbour, 1025 m west of the runway 05 threshold.

Probable Cause:

PROBABLE CAUSE: "The accident was probably caused by the crew being misled, by a visual illusion in conditions of reduced visibility, into believing they were at a safe height and consequently failing to monitor the flight instruments sufficiently to confirm their aircraft maintained a safe approach path."

Sources:
» Aircraft Accident Report No. 79-034 Air New Zealand Manukau Harbour 17 February 1979 Fokker F27-500 Friendship ZK-NFC
» Flight International 10 March 1979 (717)
» Willem Wendt


Opérations de secours

MoT NZ issued 26 Safety Recommendations

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Photos

photo of Fokker-F-27500-ZK-NFC
accident date: 17-02-1979
type: Fokker F-27 Friendship 500
registration: ZK-NFC
photo of Fokker-F-27500-ZK-NFC
accident date: 17-02-1979
type: Fokker F-27 Friendship 500
registration: ZK-NFC
 

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Gisborne Airport et Auckland International Airport est de 334 km (209 miles).
Accident location: Approximate; accuracy within a few kilometers.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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